Abstract

ARTEMIS-IV is a solar radio spectrograph (franco-hellenic collaboration) which observes the Sun continuously in the frequency rate of 20 to 650 MHz (recording 10 spectra per second) and in the 270 to 450 MHz (recording 100 spectra per second), or ~1.2 to 1,6 Gb/day. The instrument is situated at Thermopylae (Central Greece).

With this instrument we have observed a large number of solar radio bursts, several of them associated with CMEs. We have analysed the fine structure of several events with pulsating structure and fiber bursts.

P. Tsitsipis(2,4), A. Kontogeorgos(2,4), C. Caroubalos(1), X. Moussas(2), P. Preka-Papadema(2), A. Hillaris(2), C. Alissandrakis (3), J.-L. Bougeret(5), G. Dumas(5)

(1)Department of Informatics, University of Athens, GR-15783 Panepistimiopolis Zographos, Athens, Greece
(2) Section of Astrophysics, Astronomy and Mechanics, Department of Physics, University of Athens, GR-15784 Panepistimiopolis Zographos, Athens, Greece
(3) Section of Astro-Geophysics, Department of Physics, University of Ioannina, GR-45110 Ioannina, Greece
(4) Department of Electronics, Technological Education Institute of Lamia, Lamia, Greece
(5) LESIA, Observatoire de Paris, UMR CNRS 8109, F-92195 Meudon Cedex, France

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